US2820077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes for galvanic cells and method of making same
Assignee: SAFT Societe des Accumulateurs Fixes et de Traction SA
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Filing: 1954-03-12
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Granted: 1958-01-14
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Expires: 1974-03-12
Abstract
No abstract record available.
Inventors
- 👤 Salauze Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:20
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/80; H01M4/04; H01M4/24; H01M4/26; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A METHOD OF PRODUCING PLATES FOR GALVANIC CELLS COMPRISING MAINTAINING AN AQUEOUS SUSPENSION CONSISTING OF PULVERULENT PARTICLES OF AN ACTIVE MATERIAL, WATER AND A VISCOSITY INCREASING AGENT DISSOLVED IN THE WATER, SAID PARTICLES BEING METALLIC CRYSTALS SELECTED FROM THE GROUP CONSISTING OF CADMIUM, ZINC AND SILVER AND BEING CHARACTERIZED BY INTERLACING PROPERTIES, CONTINUOUSLY PASSING A PERFORATED BAND THROUGH THE SAID SUSPENSION WITHOUT AGITATION THEREBY COATING BOTH SAIDES OF SAID BAND AND FILLING THE PERFORATIONS THEREIN WITH SUSPENDED ACTIVE MATERIAL, THEN PASSING THE STRIP THROUGH A SLOT WHEREBY THE EDGES OF SAID SLOT CONTACT THE COATING TO REMOVE EXCESS THEREOF AND THE CONTROL THE THICKNESS OF THE FINAL COATINGS, THEREAFTER PASSING THE BAND SUCCESSIVELY THROUGH A HEATED DRYING CHAMBER WHEREIN THE COATINGS ARE DIRED AND BETWEEN PRESSURE ROLLS WHERE PRESSURE OF AT LEAST ONE TOM PER SQUARE CENTIMETER WITHOUT APPLICATION OF HEAT IS APPLIED TO THE DRY COATINGS EFFECTING INTERLACING OF THE SAID PARTICLES, AND CUTTING THE BAND INTO PLATES.
Claim 2
Independent Claim
159 words
A METHOD OF PRODUCING PLATES FOR GALVANIC CELLS COMPRISING MAINTAINING AN AQUEOUS SUSPENSION CONSISTING OF PULVERULENT PARTICLES OF AN ACTIVE MATERIAL, WATER AND A VISCOSITY INCREASING AGENT DISSOLVED IN THE WATER, SAID PARTICLES BEING METALLIC CRYSTALS SELECTED FROM THE GROUP CONSISTING OF CADMIUM, ZINC AND SILVER AND BEING CHARACTERIZED BY INTERLACING PROPERTIES, CONTINUOUSLY PASSING A PERFORATED BAND THROUGH THE SAID SUSPENSION WITHOUT AGITATION THEREBY COATING BOTH SAIDES OF SAID BAND AND FILLING THE PERFORATIONS THEREIN WITH SUSPENDED ACTIVE MATERIAL, THEN PASSING THE STRIP THROUGH A SLOT WHEREBY THE EDGES OF SAID SLOT CONTACT THE COATING TO REMOVE EXCESS THEREOF AND THE CONTROL THE THICKNESS OF THE FINAL COATINGS, THEREAFTER PASSING THE BAND SUCCESSIVELY THROUGH A HEATED DRYING CHAMBER WHEREIN THE COATINGS ARE DIRED AND BETWEEN PRESSURE ROLLS WHERE PRESSURE OF AT LEAST ONE TOM PER SQUARE CENTIMETER WITHOUT APPLICATION OF HEAT IS APPLIED TO THE DRY COATINGS EFFECTING INTERLACING OF THE SAID PARTICLES, AND CUTTING THE BAND INTO PLATES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |